Extra long-lasting hose constructed with silicone rubber. Ideal for extremely
high temperature service in radiator, heater and other coolant transfer hose
applications.
Excellent for extreme ambient and radiant temperature conditions.
Resists weathering, ozone, heat and coolant deterioration.
Silicone tube and cover resist prolonged exposure to under-hood and coolant
heat.
Use PowerGrip SB clamps or silicone hose clamps.
Temperature rating: –70°F to +350°F (–56°C to +177°C)
Packaging: 3-ft. lengths.
Exceeds SAE 20R1 (Class A Standard Wall) specifications.
Caution: Not recommended for fuel or oil transfer applications.
Note: Silicone hose’s water permeation rate is 10 to 15 times greater
than Gates Green Stripe coolant hose
Cooling System Hose Standards
SAE
SAE 20R1: Heavy duty service; standard wall or heavy wall
SAE 20R2: Heavy duty service with embedded wire for kink and vacuum resistance
SAE 20R3: Normal service heater hose (ID under 1 inch)
SAE 20R4: Normal service radiator hose (larger IDs)
SAE 20R5: Normal service with embedded wire for high flexibility and vacuum resistance
CLASS
Class A: High temperature resistant (e.g. silicone)
Class B: High oil resistant (e.g. nitrile)
Class C: Medium oil resistant (e.g. neoprene)
Class D-1: Low oil resistant; improved service (e.g. EPDM)
Class D-2: Low oil resistant; standard service
Class D-3: Low oil resistant; high temperature resistant (e.g. p-EPDM)
*
EC suffix: Electrochemically resistant rubber;
HT suffix: High temperature resistant rubber (>125°C)